Roomba Plus 504 Review — Powerful, Self-Emptying AI Vacuum

Introduction

This is a feature-rich robot vacuum from iRobot designed to make everyday floor cleaning largely hands-free. It combines on-board object recognition, room mapping, anti-tangle brushes and an AutoEmpty dock that deposits dirt into an enclosed bag for weeks at a time. This model targets households with pets, kids, or busy schedules that need frequent, reliable cleaning without daily intervention.

In practical terms, the unit recognizes and navigates around small objects, boosts suction on carpets, and sends debris into a sealed dock so you don’t handle dust for a long stretch. Quick verdict: a seriously capable home-cleaning assistant that emphasizes obstacle avoidance and low-maintenance operation. (Primary keyword used: Roomba)

What’s in the Box

• Robot vacuum unit (model name not specified in the listing) — Not specified
• AutoEmpty Dock with enclosed dust bag (holds up to 75 days of debris, per listing) (source: listing, checked 2025)
• Charging hardware / power cord — Not specified
• Cleaning tool / spare filters / extra brushes — Not specified
• Quick start guide / documentation — Not specified

If you need an exact inventory (replacement bags included, number of extra filters, accessory count), the listing does not provide those specifics.

Design & Build

The unit’s exterior follows iRobot’s contemporary, low-profile aesthetic with smooth finishes and textured accents that are intended to blend into modern home decor. Materials are not itemized in the listing, but the visible components—top cover, bumper ring and brush bay—appear to be molded plastics and rubber where contact is required (bristles/rubber strips).

Because exact dimensions and weight are not provided, I can’t confirm clearance requirements for sliding under low furniture or the unit’s portability. However, the presence of ClearView Pro LIDAR and multiple sensors implies a stable chassis with a modest height typical of mid‑range robot vacuums. Ergonomics focus on minimal user interaction: the top-level controls are simple and most maintenance is intended to be infrequent thanks to the AutoEmpty Dock.

Key Features

PrecisionVision AI Technology

PrecisionVision AI immediately recognizes and navigates around a wide range of small household obstacles. The listing specifies it detects objects “of all shapes and sizes, including cords, socks, and pet waste” (source: listing, checked 2025). Practically, that means fewer stuck runs and less need to pre-clear the floor before a scheduled clean—helpful during busy mornings or when pets leave unexpected messes. Note: see iRobot.com for full details and limitations.

Dual Rubber Brushes (Anti-Tangle)

Patented dual rubber brushes are designed to flex and maintain contact with all floor types, which reduces tangles from pet hair and long fibers. In real-world homes, this configuration tends to lower brush maintenance frequency and improves hair pickup on both hard floors and area rugs. If you have shedding pets, these brushes are one of the core design choices that prevent frequent brush unclogging.

Extreme Power-Lifting Suction

The unit is marketed with “150x more extreme power-lifting suction” (source: listing, checked 2025). That marketing line indicates a strong focus on airflow and deep pickup, particularly on carpets and high-traffic zones. Pairing the brushes with a high-suction motor helps to lift embedded dirt and redistribute less debris onto surrounding surfaces.

ClearView Pro LIDAR Mapping

ClearView Pro LIDAR maps your home to maximize coverage and improve navigation accuracy both day and night. This sensor suite also includes cliff detection to avoid stairs. The mapping capability enables the robot to create logical routes, remember room layouts, and reduce redundant passes—useful for complex floor plans where random navigation would miss spots or run longer than necessary.

AutoEmpty Dock — Up to 75 Days Hands-Free

The AutoEmpty Dock traps and contains debris in an enclosed bag and is advertised to keep you dust-cloud free for up to 75 days (source: listing, checked 2025). For households that prefer low-touch maintenance, this feature dramatically reduces the frequency you need to physically empty the robot’s bin or handle dust. The dock’s sealed bag also helps contain fine particles down to 0.7 microns, per the listing.

Dirt Detect Technology

Advanced Dirt Detect Technology identifies zones with heavier soiling and repeats cleaning passes to ensure those areas get extra attention. This is particularly valuable around dining tables, entryways, and kid activity areas where messes tend to concentrate. The robot adjusts focus without manual intervention, saving you from running extra cleaning sessions.

Roomba Home App & Intelligent Cleaning Controls

The new app allows room-by-room cleaning, customizable zones, four suction levels, and the option to repeat passes in high-traffic areas. This is useful when you want targeted runs (e.g., kitchen after mealtime) or quieter operation at certain times. Setup through the app also unlocks scheduling and mapping management so you can fine-tune how the robot works around your home.

Adaptive Cleaning Prioritization

The robot “puts data on dirt to good use” by identifying the rooms that get dirty fastest, prioritizing them, and automatically selecting appropriate settings. That means over time the system learns your home’s hotspots and allocates cleaning effort where it’s most needed—useful for mixed-use homes where some rooms require more frequent attention.

Voice Assistant Compatibility

The unit supports Alexa, Siri, and Google Assistant, enabling voice-initiated cleaning commands such as “clean the living room.” This is handy for hands-free operation when your phone isn’t handy or you want to trigger a quick spot clean.

Performance & Use

Setup and mapping

• Initial setup requires placing the AutoEmpty Dock on a flat surface and allowing the robot to complete a mapping run. For best results, start with a relatively open floor plan so the LIDAR can quickly scan and stitch together room layouts.
• Allow the robot to complete at least one full mapping session before setting room-specific schedules; subsequent mapping runs refine room boundaries and dirt-priority patterns.

Daily and weekly use

• Schedule regular runs for rooms that accumulate dirt fastest (entryways, kitchens, pet areas). Let the AutoEmpty Dock handle debris storage so daily emptying is unnecessary for most households.
• Use the app’s suction level options to lower noise for evening cleanups and increase power for deeper, post-party or pet-shedding sessions.

Maintenance tips

• Even with the AutoEmpty Dock, the robot’s brushes, filter, and wheels need occasional inspection. Remove hairs or threads wrapped around the brushes to maintain peak performance.
• Replace AutoEmpty Dock bags according to use patterns—manufacturer claims up to 75 days between bag changes under typical conditions (source: listing, checked 2025); homes with heavy shedding or many occupants may need more frequent replacement.
• Keep the robot’s sensors and cliff detectors free of dust for reliable navigation. A dry microfiber cloth works well for this purpose.

Real-world performance notes

• The PrecisionVision AI promise of avoiding a broad range of small obstacles can reduce the number of interrupted runs, but it’s wise to pick up hazardous items and loose cords where possible—no sensor suite is infallible.
• Carpet Boost and the strong suction pairing make the unit more capable on rugs than typical entry-level robot vacuums; however, performance on very deep-pile carpets isn’t specified in the listing.

Pros vs Cons

Who Should Buy

• Busy households that want hands-free cleaning and minimal daily maintenance, especially those with pets or children who create frequent messes.
• People who value obstacle avoidance and mapping accuracy to reduce interrupted runs and missed spots.
• Anyone who prefers a robot that deposits debris into a sealed bag, reducing direct contact with dust and allergens.

Who shouldn’t buy

• Buyers needing explicit product dimensions, weight, or clearance specs before purchase (those details are not provided in the listing).
• Budget shoppers seeking a basic, low-cost robot vacuum—this model targets convenience and advanced features, which are reflected in its positioning.
• Homes with extremely deep-pile carpets or uncommon floor surfaces where manufacturer performance claims should be validated against specific use cases.

Specs

Note: The full technical specifications (SPECS) are not provided in the listing. Where SPECS are missing, entries are marked “Not listed.”

If you need precise numeric specs (battery mAh, exact dimensions, weight, noise level, airflow figures), they are not included in the listing and you should check the manufacturer’s detailed product page or contact the seller.

Closing — Should you consider this model?

If you want a largely hands-off solution that intelligently avoids small obstacles, maps rooms for targeted cleaning, and reduces dust exposure through an AutoEmpty dock, this model is a strong candidate. The combination of anti-tangle brushes, dirt-prioritization software and sealed debris containment makes it especially attractive for homes with pets and busy schedules. For a low-maintenance, smarter cleaning routine, this Roomba-style approach is worth a close look.

If you need exact physical specs or want the lowest possible purchase price without accessory considerations, verify those details with the seller before buying.

Short CTA: Review the full seller listing and iRobot’s product page for detailed specifications and availability, and compare replacement bag pricing to estimate long-term ownership costs (source: listing, checked 2025).